"Gf left me, she say i am poor, 4 years relationship,fail future wedding"

Dude, all i can say is, you're the luckiest person ever!
i'm trying to be frank with you.
imagine getting married to her, having a child or two
financial problems will sure to arise
no matter how rich you are, financial problem will arise

girls like her (sometimes not her completely, might be their parents convincing them to break up with you) who loves $$$$$
will never be a good girlfriend, wife and a mother

the reason why i tell you this is from my experienced,
no matter how bad my financial condition is
my girlfriend who is now my wife
stood by with me
going though financial problems everyday
until the day we're in a better condition
and when we think back, there is nothing more happier
than having someone to face the problem with you together
without leaving you behind suddenly when there is a problem occur

yes, u might loved her very much, but try to forget about her
there is still many kind girls out there...
just keep looking at the correct place..